Flow and heat transfer over an unsteady stretching sheet in a micropolar fluid with prescribed surface heat flux

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Abstract

The unsteady laminar flow of an incompressible micropolar fluid over a stretching sheet with prescribed surface heat flux is investigated. The governing partial differential boundary layer equations are first transformed into ordinary differential equations before being solved numerically by a finite-difference method. The effects of the unsteadiness parameter, material parameter and Prandtl number on the flow and heat transfer characteristics are studied. It is found that the surface shear stress and the heat transfer rate at the surface are higher for micropolar fluids compared to Newtonian fluids.

Original languageEnglish
Pages (from-to)167-176
Number of pages10
JournalInternational Journal of Mathematical Models and Methods in Applied Sciences
Volume4
Issue number3
Publication statusPublished - 2010

Fingerprint

Stretching Sheet
Micropolar Fluid
Heat Flux
Stretching
Heat flux
Heat Transfer
Heat transfer
Fluids
Prandtl number
Newtonian Fluid
Laminar Flow
Unsteady Flow
Shear Stress
Laminar flow
Finite difference method
Ordinary differential equations
Incompressible Fluid
Difference Method
Shear stress
Boundary Layer

Keywords

  • Fluid mechanics
  • Heat transfer
  • Micropolar fluid
  • Stretching sheet
  • Unsteady flow

ASJC Scopus subject areas

  • Applied Mathematics
  • Computational Mathematics
  • Mathematical Physics
  • Modelling and Simulation

Cite this

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AU - Bachok, N.

AU - Mohd Ishak, Anuar

AU - Mohd. Nazar, Roslinda

PY - 2010

Y1 - 2010

N2 - The unsteady laminar flow of an incompressible micropolar fluid over a stretching sheet with prescribed surface heat flux is investigated. The governing partial differential boundary layer equations are first transformed into ordinary differential equations before being solved numerically by a finite-difference method. The effects of the unsteadiness parameter, material parameter and Prandtl number on the flow and heat transfer characteristics are studied. It is found that the surface shear stress and the heat transfer rate at the surface are higher for micropolar fluids compared to Newtonian fluids.

AB - The unsteady laminar flow of an incompressible micropolar fluid over a stretching sheet with prescribed surface heat flux is investigated. The governing partial differential boundary layer equations are first transformed into ordinary differential equations before being solved numerically by a finite-difference method. The effects of the unsteadiness parameter, material parameter and Prandtl number on the flow and heat transfer characteristics are studied. It is found that the surface shear stress and the heat transfer rate at the surface are higher for micropolar fluids compared to Newtonian fluids.

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KW - Micropolar fluid

KW - Stretching sheet

KW - Unsteady flow

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